Select all the systems of equations that have exactly one solution. y = 3x + 1
y = 3x + 7

y = 3x + 1
y = x+1

y=3x+1
y = 3x + 7

x+y=10
2x+2y=20

x+y=10
x+y=12

Use the expression below.–4b + 8c + 12 – 8b – 2c + 6part asimplify the expression. enter your answers in the boxes. b + c + part bfactor the simplified expression using the gcf. a. 2(–2b + c + 3) b. 3(–2b + c + 3) c. 4(–2b + c + 3) d. 6(–2b + c + 3)part cwhat is the value of the expression when b = 2 and c = –3? enter your answer in the box.

Carmen begins her next painting on a rectangular canvas that is 82.7 cm long and has a area of 8,137.68 cm2. will the painting fit in a frame with an opening that is 82.7 cm long and 95 cm wide? explain

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?